int LED_1 = 2;
int LED_2 = 3;
int LED_3 = 4;
int LED_4 = 5;
int LED_5 = 6;

#define sensorPin A0 // Analog input pin that the Sensor is attached to

void setup() {

  pinMode(LED_1, OUTPUT);
  pinMode(LED_2, OUTPUT);
  pinMode(LED_3, OUTPUT);
  pinMode(LED_4, OUTPUT);
  pinMode(LED_5, OUTPUT);
  pinMode(sensorPin, INPUT);
  Serial.begin(9600);// initialize serial communications at 9600 bps:

}

void loop() {

  int sensorValue = analogRead(sensorPin);
  Serial.println(sensorValue);
  //LED_1
if(sensorValue > 0 ){
  digitalWrite(LED_1, HIGH);
}
else {
  digitalWrite(LED_1, LOW);
}
  //LED_2
  if(sensorValue > 200 ){
  digitalWrite(LED_2, HIGH);
}
else {
  digitalWrite(LED_2, LOW);
}
//LED_3
if(sensorValue > 400 ){
  digitalWrite(LED_3, HIGH);
}
else {
  digitalWrite(LED_3, LOW);
}
//LED_4
if(sensorValue > 600 ){
  digitalWrite(LED_4, HIGH);
}
else {
  digitalWrite(LED_4, LOW);
}
//LED_5
if(sensorValue > 800){
  digitalWrite(LED_5, HIGH);
}
else {
  digitalWrite(LED_5, LOW);
}
}